Apex ED Esprit 120/150 Threaded Extension

Name: Apex ED Esprit 120/150 Threaded Extension
Brand: Starizona
SKU: ApexED-E150EX
Price: 29.97 USD
Availability: InStock
Rating: 4.4 (5 reviews)

Apex ED Esprit 120/150 Threaded Extension - Main image

$29.97 ~~$49.95~~ In stock

Category: Astrophotography Accessories

Description

The SkyWatcher Esprit 120 and 150 require the Starizona ApexED 0.65x reducer to be placed farther back from the optical tube and when used with our Apex Threaded Adapters, the drawtube on the focuser is not long enough. This spacer adds 2" between the focuser and threaded adapter. It threads onto the focuser itself, keeping the attachment of the ApexED reducer secure and square.

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Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.4 / 5 · 5 reviews)

David ★★★★★ Oct 20, 2026

Finally got the spacing dialed in for my Esprit 150 with the ApexED reducer, and this extension let me thread everything securely without any wobble. The machining is precise enough that the optical axis stayed perfectly centered, which made a huge difference in my edge stars.

Avery ★★★★★ Oct 19, 2026

The threads on this extension are incredibly smooth, which made dialing in the exact back focus for my Esprit a breeze. I've been struggling with star shapes for weeks, and this finally got everything locked in perfectly.

Samuel ★★★★★ Oct 18, 2026

Finally got the spacing right for my Esprit 120 — this extension lets the reducer sit at the perfect distance. The threads are smooth and lock up tight with no wobble at all.